Valve has released a Halloween-themed update for Team Fortress 2. The update adds the first ever NPC in Team Fortress: the Headless Horsemann. The Horsemann is a randomly generated boss monster and appears in Mann Manor, a new attack/defend map scattered with exploding pumpkins. The update also adds new achievements, a Halloween department of the Mann Co store, and new community items from 10 new contributors. There are probably more bits and bobs floating about too.